Global Patent Index - EP 0456447 B1

EP 0456447 B1 19980729 - Data processing apparatus utilizing CPU

Title (en)

Data processing apparatus utilizing CPU

Title (de)

Datenverarbeitungsvorrichtung mit CPU

Title (fr)

Appareil de traitement de données utilisant un CPU

Publication

EP 0456447 B1 19980729 (EN)

Application

EP 91304081 A 19910507

Priority

  • JP 12203890 A 19900510
  • JP 19948490 A 19900726
  • JP 25227390 A 19900921

Abstract (en)

[origin: EP0456447A2] An information processing apparatus, or an image recording apparatus, utilizing a CPU and a memory and capable of improving the throughput of data processing is disclosed. When the CPU does not make access to the memory, the bus between the CPU and the memory is disconnected and the bus between the memory and a data reception buffer or a recording device is established, so that the data transfer between the memory and the data reception buffer or the recording device can be conducted in parallel to the function of the CPU. <IMAGE>

IPC 1-7

G06F 13/16; B41J 2/00

IPC 8 full level

G06F 13/16 (2006.01)

CPC (source: EP KR US)

G06F 13/00 (2013.01 - KR); G06F 13/1684 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE ES FR GB IT NL

DOCDB simple family (publication)

EP 0456447 A2 19911113; EP 0456447 A3 19930707; EP 0456447 B1 19980729; AU 652748 B2 19940908; AU 7648591 A 19911114; CA 2042070 A1 19911111; CA 2042070 C 19980721; DE 69129877 D1 19980903; DE 69129877 T2 19981217; ES 2118738 T3 19981001; KR 910020564 A 19911220; KR 940000377 B1 19940119; US 5530792 A 19960625

DOCDB simple family (application)

EP 91304081 A 19910507; AU 7648591 A 19910510; CA 2042070 A 19910508; DE 69129877 T 19910507; ES 91304081 T 19910507; KR 910007255 A 19910504; US 23257994 A 19940425